Sash-fastener.



N. A. BUGKINGHAM.

SASH FASTBNER.

APPLIOATION FILED nso. a9, 190B.

Y Patented Mar.2, 19.09. 2

rplate 7, is a spring barrel 9a, the outer face of NATHAN A. BUCKINGIIAM, Ol" JACKSONVILLE, ILLINOIS.

SASH-FASTENER.

Application led December 29, 1908.

Specification of Letters Patent.

Patented March 2, 1909.

Serial No. 469,848.

To all whom it may concern.'

Be it known that I, NATHAN A. BUCKING- HAM, a citizen of the United States, residing at Jacksonville, in the county of Morgan and State of Illinois, have invented certain new and useful Improvements in Sash-Fasteners, of which the following is a specification.

` This invention relates to improvements in sash fasteners.

The object of the invention is to provide double means for eifectually locking window sashes.

In my Patent No. 426,581, dated April 29 1890, I have shown a sash fastener of a type, on which the present invention is an improvement. In the construction shown in the patent mentioned, the locking bolt and its mountings are supported on a stationary mounting on the window sash. According to they present invention, I utilize the principles of construction shown in the patent, and in addition thereto employ a pivotally mounted double face cam support-ed adjacent the locking bolt, the latter and the cam being pivotally supported.

The invention therefore relates to the novel arrangement of parts, whereby I am enabled to provide a manual locking bolt, and an automatic locking cam cooperating therewith.

The details of construction, and the operation of the various parts will bc hereinafter referred to and particularly pointed out in the claims.

In the drawings z-Figure 1, is a view in front elevation, showing the application of my invention. Fig. 2, is a side elevation, parts of the window casing being removed. Fig. 3, is a horizontal section.

The same numerals refer to like parts in all the figures.

The numeral 1, indicates a window frame, 2, the lower sash, and 4, the dividing rail between the two sashes.

Secured on the upper rail of the lower sash 2, is a plate 5, and pivoted thereto, by a screw 6, is a base plate 7, of the sash fastener. The base plate 7, is formed with a curved slot 8, through which a screw 9, passes into the plate 5. Extending up from the base which is provided with a cam 10. Passing through the barrel is a locking bolt 10', provided with a lug 11, which coperates with the cam 10, while at its opposite end it is provided with a lug 12. The locking bolt 10', cooperates with a slotted strip 13, fastened to the sash 3. This strip is formed with a series of off set portions having openings 14, in their front walls, said openings having an extension on one side, slightly narrower than the diameter of the openings proper.

Vvlith the exception of the pivotal arrange ment of the base plate, the construction thus described is substantially the same as that shown in my before mentioned patent.

A lug 15, extends up from the base plate 7, and affords a support for a screw 16, on which is mounted a double cam 17, arranged in proximity to the dividing rail 4 when the lock is in position for operation.

In operation, the free end of the base plate 7, is turned toward the sash 3, on the pivot 6, the slot S, permitting such movement. This brings the double cam close to the dividing strip, and also the locking bolt in proper position to enter one of the openings in the strip 13. The locking bar is now inserted in the opening 14, and by reason of the cam 10, the lug is permitted to assume locking position in the oil set portions. The sash is now locked in position, but should someone attempt to move the sash, the double cam 17, will be revolved and create a binding action, and obviously form a lock. To enable the operator to raise and lower the sashes without binding the same by the double cam the base plate 7 is turned outward, which removes the said cam out of the path of movement of the face of the dividing rail 4.

From the foregoing description, taken in connection with the accompanying drawing, it will be seen I have provided a practical, convenient, and economical means for locking the sashes with relation to each other,

and also means for locking both sashes against movement.

What I claim is 1. A sash fastener, comprising a supporting plate, a base plate pivoted to the supporting plate and formed with a slot and a projection, a pin passing through the slot, and seated in the supporting plate, a housing carried by the base plate, a sliding locking bolt formed with a lug, a pivoted double cam mounted on the projection, and a locking strip formed with openings and with which the lug of the locking bolt cooperates.

2. A sash fastener, comprising a supporting plate, a base plate pivotally mounted on the supporting plate, a liousing extending from the supporting plate, a looking boltV operating in the housing and formed at one end with a lug, a strip formed with openings With which the lug engages, a pivoted earn carried by the pivoted base plate, and means for limiting the movement of the pivoted base plate.

3. A sash fastener, comprising a supporting plate, a base plate pivotally mounted on the supporting plate, a housing extending from the supporting alate, a looking bolt operating in the housing and formed at one end with a lug, a strip formed Witli openings with Wliieh tlie lug engages, a pivoted element formed on opposite sides with similar shaped cam surlaees, and carried by the pivoted base, and means for limiting tlie movement oi the pivoted base plate.

4L A sash fastener, Comprising a supporting plate, a base plate pivotally mounted on the supporting plate, a manually operated sasli fastener mounted on the base supporting plate, and means also `mounted on the pivotally mounted base plate for automatioally holding the saslies against movement after being looked by the manually operated sash fastener.

-ln testimony whereof l aiix my signature in presence of tWo Witnesses.

NATHAN A. BUGKENGHAM. `itnesses:

CHARLES A. BARNES, LENA C. ENGEL. 

